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Mechanical Operations

Mechanical Operations
Dispersion of a gas through liquid is done by using a

None of these
Masticator
Kneader
Sparger

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Mechanical Operations
Handling of ashes and similar materials can be done best by a __________ conveyor.

Flight
Drag or slat
Belt
Ribbon

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Mechanical Operations
Cement clinker is reduced to fine size by a

Roll crusher
Ball mill
Tube mill
Hammer mill

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Mechanical Operations
The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is

9.0 kWh/ton
25.4 kWh/ton
6.35 kWh/ton
18 kWh/ton

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Mechanical Operations
Which of the following is a fine crusher?

Toothed roll crusher
Blake jaw crusher
Dodge jaw crusher
Gyratory crusher

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Mechanical Operations
Dry powdery solid materials are transported by a __________ conveyor.

Bucket
Belt
Screw
None of these

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